Prolasius

{{Short description|Genus of ants}}

{{Automatic taxobox

|image = Prolasius nitidissimus casent0172170 profile 1.jpg

|image_caption = Prolasius nitidissimus worker from Tasmania, Australia

|display_parents = 2

|taxon = Prolasius

|authority = Forel, 1892

|type_species = Formica advena

|diversity_link = #Species

|diversity = 19 species

|diversity_ref = {{AntCat|429172|Prolasius|2014|accessdate=4 July 2014}}

}}

Prolasius is a genus of ants in the subfamily Formicinae. Of the genus' 19 species, 18 are known from Australia (one of which is also found in Papua New Guinea) and one from New Zealand. They nest in soil under rocks or logs, sometimes in trees.{{cite book|last=Shattuck|first=S. |year=2000|title=Australian Ants: Their Biology and Identification|publisher=CSIRO Publishing|isbn=978-0-643-06659-5|pages=110–111}}